I'm migrating from Joomla 3 to Joomla 4 and am trying to open an article in a popup from a link in another article. This type of popup worked fine in Joomla 3 and in Joomla 4, but suddenly the popups stopped working. I'm using the latest JCE Mediabox Version 2.1.5.
I have also a few more problems with popups I open programmatically, but those will come later once the basic popups start working.
You can see an example here : https://www.efrancos.fr/blog/index.php/rubriques/actualite/7136-test-article-for-popups
Thanks in advance for any help